docs: def view_job_info(token, dstore):
      """
      Determine the amount of data transferred from the controller node
      to the workers and back in a classical calculation.
      """
      data = [['task', 'sent', 'received']]
      for task in dstore['task_info']:
          dset = dstore['task_info/' + task]
          if 'argnames' in dset.attrs:
              argnames = dset.attrs['argnames'].split()
              totsent = dset.attrs['sent']
              sent = ['%s=%s' % (a, humansize(s))
                      for s, a in sorted(zip(totsent, argnames), reverse=True)]
              recv = dset['received'].sum()
              data.append((task, ' '.join(sent), humansize(recv)))
      return rst_table(data)